1998, Austria
Valentin Hitz
2018, Germany, Azerbaijan
Veit Helmer
2015, France
Pierre Léon
2014, France
Thomas Salvador
2016, Brazil
Cláudia Jouvin
2011, Germany, Russia, Kazakhstan
1999, Germany
2017, Estonia, Netherlands, Poland
Rainer Sarnet
2018, Romania, Bulgaria
Paul Negoescu
2014, Hungary
Gábor Reisz
2008, Germany
2015, Bulgaria
Ivaylo Hristov